1 /* 2 * QEMU S390x floating interrupt controller (flic) 3 * 4 * Copyright 2014 IBM Corp. 5 * Author(s): Jens Freimann <jfrei@linux.vnet.ibm.com> 6 * Cornelia Huck <cornelia.huck@de.ibm.com> 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or (at 9 * your option) any later version. See the COPYING file in the top-level 10 * directory. 11 */ 12 13 #include "qemu/error-report.h" 14 #include "hw/sysbus.h" 15 #include "migration/qemu-file.h" 16 #include "hw/s390x/s390_flic.h" 17 #include "trace.h" 18 19 S390FLICState *s390_get_flic(void) 20 { 21 S390FLICState *fs; 22 23 fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL)); 24 if (!fs) { 25 fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC, NULL)); 26 } 27 return fs; 28 } 29 30 void s390_flic_init(void) 31 { 32 DeviceState *dev; 33 int r; 34 35 dev = s390_flic_kvm_create(); 36 if (!dev) { 37 dev = qdev_create(NULL, TYPE_QEMU_S390_FLIC); 38 object_property_add_child(qdev_get_machine(), TYPE_QEMU_S390_FLIC, 39 OBJECT(dev), NULL); 40 } 41 r = qdev_init(dev); 42 if (r) { 43 error_report("flic: couldn't create qdev"); 44 } 45 } 46 47 static int qemu_s390_register_io_adapter(S390FLICState *fs, uint32_t id, 48 uint8_t isc, bool swap, 49 bool is_maskable) 50 { 51 /* nothing to do */ 52 return 0; 53 } 54 55 static int qemu_s390_io_adapter_map(S390FLICState *fs, uint32_t id, 56 uint64_t map_addr, bool do_map) 57 { 58 /* nothing to do */ 59 return 0; 60 } 61 62 static int qemu_s390_add_adapter_routes(S390FLICState *fs, 63 AdapterRoutes *routes) 64 { 65 return -ENOSYS; 66 } 67 68 static void qemu_s390_release_adapter_routes(S390FLICState *fs, 69 AdapterRoutes *routes) 70 { 71 } 72 73 static void qemu_s390_flic_class_init(ObjectClass *oc, void *data) 74 { 75 S390FLICStateClass *fsc = S390_FLIC_COMMON_CLASS(oc); 76 77 fsc->register_io_adapter = qemu_s390_register_io_adapter; 78 fsc->io_adapter_map = qemu_s390_io_adapter_map; 79 fsc->add_adapter_routes = qemu_s390_add_adapter_routes; 80 fsc->release_adapter_routes = qemu_s390_release_adapter_routes; 81 } 82 83 static const TypeInfo qemu_s390_flic_info = { 84 .name = TYPE_QEMU_S390_FLIC, 85 .parent = TYPE_S390_FLIC_COMMON, 86 .instance_size = sizeof(QEMUS390FLICState), 87 .class_init = qemu_s390_flic_class_init, 88 }; 89 90 static const TypeInfo s390_flic_common_info = { 91 .name = TYPE_S390_FLIC_COMMON, 92 .parent = TYPE_SYS_BUS_DEVICE, 93 .instance_size = sizeof(S390FLICState), 94 .class_size = sizeof(S390FLICStateClass), 95 }; 96 97 static void qemu_s390_flic_register_types(void) 98 { 99 type_register_static(&s390_flic_common_info); 100 type_register_static(&qemu_s390_flic_info); 101 } 102 103 type_init(qemu_s390_flic_register_types) 104